package com.itheima.d3_util;
import java.lang.management.MemoryUsage;
import java.util.Random;

/**
   注册界面 : 随机产生6位验证码
 */
public class RegisterDemo {
    public static void main(String[] args) {
        String code = MyUtil.createCode(4);
        System.out.println(code);
    }
}
